/*

     File: Document.m

 Abstract: Header file for the saved text document.

  Version: 1.2

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 */

#import "Document.h"

@implementation Document

- (NSString *)windowNibName

{

    // Override returning the nib file name of the document

    // If you need to use a subclass of NSWindowController or if your document supports

    // multiple NSWindowControllers, you should remove this method and override -makeWindowControllers instead.

    //

    return @"Document";

}

- (void)windowControllerDidLoadNib:(NSWindowController *)aController

{

    [super windowControllerDidLoadNib:aController];

    // add any code here that needs to be executed once the windowController has loaded the document's window

    [self.textView setString:[[NSString alloc] initWithData:self.docData encoding:NSASCIIStringEncoding]];

}

+ (BOOL)autosavesInPlace

{

    return YES;

}

- (NSData *)dataOfType:(NSString *)typeName error:(NSError **)outError

{

    // Insert code here to write your document to data of the specified type.

    // If the given outError != NULL, ensure that you set *outError when returning nil.

    //

    NSString *testStr = [self.textView string];

    return [testStr dataUsingEncoding:NSASCIIStringEncoding];

}

- (BOOL)readFromData:(NSData *)data ofType:(NSString *)typeName error:(NSError **)outError

{

    // Insert code here to read your document from the given data of the specified type.

    // If the given outError != NULL, ensure that you set *outError when returning NO.

    //

    self.docData = data;

    return YES;

}

#pragma mark - Save panel

// -------------------------------------------------------------------------------

// prepareSavePanel:inSavePanel:

// -------------------------------------------------------------------------------

// Invoked by runModalSavePanel to do any customization of the Save panel savePanel.

//

- (BOOL)prepareSavePanel:(NSSavePanel *)inSavePanel

{

    [inSavePanel setDelegate:self]; // allows us to be notified of save panel events

    // here we explicitly want to always start in the user's home directory,

    // If we don't set this, then the save panel will remember the last visited

    // directory, which is generally preferred.

    //

    [inSavePanel setDirectoryURL:[NSURL URLWithString:NSHomeDirectory()]];

    [inSavePanel setMessage:@"This is a customized save dialog for saving text files:"];

    [inSavePanel setAccessoryView:saveDialogCustomView];    // add our custom view

    [inSavePanel setAllowedFileTypes:@[@"txt"]];            // save files with 'txt' extension only

    [inSavePanel setNameFieldLabel:@"FILE NAME:"];          // override the file name label

    _savePanel = inSavePanel;   // keep track of the save panel for later

    return YES;

}

// -------------------------------------------------------------------------------

// isValidFilename:filename:

// -------------------------------------------------------------------------------

// Gives the delegate the opportunity to validate selected items.

//

// The NSSavePanel object sender sends this message just before the end of a modal session for each filename

// displayed or selected (including filenames in multiple selections). The delegate determines whether it

// wants the file identified by filename; it returns YES if the filename is valid, or NO if the save panel

// should stay in its modal loop and wait for the user to type in or select a different filename or names.

// If the delegate refuses a filename in a multiple selection, none of the filenames in the selection is accepted.

//

// In this particular case: we arbitrary make sure the save dialog does not allow files named as "text"

//

- (BOOL)panel:(id)sender isValidFilename:(NSString *)filename

{

    BOOL result = YES;

    NSURL *url = [NSURL fileURLWithPath: filename];

    if (url && [url isFileURL])

    {

        NSArray *pathPieces = [[url path] pathComponents];

        NSString *actualFilename = [pathPieces objectAtIndex:[pathPieces count]-1]; //•• redo

        if ([actualFilename isEqual:@"text.txt"])

        {

            NSAlert *alert = [NSAlert alertWithMessageText:@"Cannot save a file name titled \"text\"."

                                             defaultButton:@"OK"

                                           alternateButton:nil

                                               otherButton:nil

                                 informativeTextWithFormat:@"Please pick a new name."];

            [alert runModal];

            result = NO;

        }

    }

    return result;

}

// -------------------------------------------------------------------------------

// userEnteredFilename:filename:confirmed:okFlag

// -------------------------------------------------------------------------------

// Sent when the user confirms a filename choice by hitting OK or Return in the NSSavePanel object sender.

//

// You can either leave the filename alone, return a new filename, or return nil to cancel the save

// (and leave the Save panel as is). This method is sent before any required extension is appended to the

// filename and before the Save panel asks the user whether to replace an existing file.

//

// In this particular case, we arbitrarily add a "!" to the end of the file name.

//

// IMPORTANT NOTE:

// Certain NSOpenPanel and NSSavePanel methods behave differently when App Sandbox is enabled for your app.

// This particular delegate is one of them. So for sandboxed apps, you cannot rewrite the

// user’s selection using this method. For more information see App Sandbox Guide on developer.apple.com.

//

- (NSString *)panel:(id)sender userEnteredFilename:(NSString *)filename confirmed:(BOOL)okFlag

{

    NSMutableString *returnFileName = [NSMutableString stringWithString:filename];

    if (okFlag && [appendCheck state])

    {

        NSRange searchRange = [returnFileName rangeOfString:@"."];

        if (searchRange.length)

        {

            [returnFileName insertString:@"!" atIndex:searchRange.location];

        }

        else

        {

            [returnFileName appendString:@"!"];

        }

    }

    return returnFileName;

}

// -------------------------------------------------------------------------------

// willExpand:expanding

// -------------------------------------------------------------------------------

// Sent when the NSSavePanel object sender is about to expand or collapse because the user clicked the

// disclosure triangle that displays or hides the file browser.

//

// In this particular case, we have sound feedback for expand/shrink of the save dialog.

//

- (void)panel:(id)sender willExpand:(BOOL)expanding

{

    if ([soundOnCheck state])

    {

        if (expanding)

            [[NSSound soundNamed:@"Pop"] play];

        else

            [[NSSound soundNamed:@"Blow"] play];

    }

    // package navigation doesn't apply for the shrunk/simple dialog

    [navigatePackages setHidden:!expanding];

}

// -------------------------------------------------------------------------------

// directoryDidChange:path

// -------------------------------------------------------------------------------

// Sent when the user has changed the selected directory in the NSSavePanel object sender.

//

// In this particular case, we have sound feedback for directory changes.

//

- (void)panel:(id)sender directoryDidChange:(NSString *)path

{

    if ([soundOnCheck state])

    {

        [[NSSound soundNamed:@"Frog"] play];

    }

}

// -------------------------------------------------------------------------------

// panelSelectionDidChange:sender

// -------------------------------------------------------------------------------

// Sent when the user has changed the selection in the NSSavePanel object sender.

//

// In this particular case, we have sound feedback for selection changes.

//

- (void)panelSelectionDidChange:(id)sender

{

    if ([soundOnCheck state])

    {

        [[NSSound soundNamed:@"Hero"] play];

    }

}

// -------------------------------------------------------------------------------

// filePackagesAsDirAction:sender

// -------------------------------------------------------------------------------

// toggles flag via custom checkbox to view packages

//

- (IBAction)filePackagesAsDirAction:(id)sender

{

    [self.savePanel setTreatsFilePackagesAsDirectories:[sender state]];

}

@end